OggPlayer - Ogg Vorbis is an audio compression format similar to mp3. However the compressed files are approximately a factor two smaller than mp3 files. To be more precise an ogg file encoded with 64kbit/sec gives approximately the same level of audio quality as a 128kbit/sec mp3 file. In addition the ogg format is a free format, i.e. nobody pays licence fees when recording or playing music in this format.